スピーク (Speak)

AI Education & Learning

An AI English conversation app partnered with OpenAI. Practice English with AI 24/7, with over 1,000 words of speaking practice possible in just 20 minutes.

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What is スピーク (Speak)?

Speak is an AI English conversation app developed in partnership with OpenAI, with over 5 million downloads worldwide. Unlike traditional online English lessons, it allows you to practice English conversation with AI anytime, 24/7, without reservations. Lessons are designed so you can speak over 1,000 words in 20 minutes, achieving approximately 10 times the speaking practice volume of traditional English conversation services. The AI analyzes pronunciation in real-time and provides feedback, instantly correcting mistakes. It offers lessons for a wide range of scenarios from daily conversation to business English, with progressive learning matched to your level. The lack of pressure from a human instructor makes it easy to practice repeatedly without fear of making mistakes.

Pricing Plans

1Free plan (limited features)
2Premium ~¥1,800/mo (annual plan discounts available)
3Premium Plus ~¥4,000/mo

Key Features

AI English conversation lessons
Pronunciation analysis & real-time feedback
Speaking practice (1,000+ words in 20 min)
Level-based curriculum
Daily conversation & business English
Pronunciation correction
Vocabulary learning
Progress tracking

Pros & Cons

Pros

  • Practice English conversation 24/7 anytime
  • Over 1,000 words of speaking in just 20 minutes
  • AI pronunciation analysis with real-time feedback
  • No reservations needed — start practicing immediately
  • No pressure from making mistakes in front of others

Cons

  • Different from real conversation with human instructors
  • Free plan has feature limitations
  • Does not support language learning beyond English
  • Internet connection required

Frequently Asked Questions

Q. Can I use Speak for free?

A. Yes, you can try some lessons with the free plan. Full access requires the Premium plan (~¥1,800/mo). Significant discounts are available with the annual plan.

Q. Is it suitable for English beginners?

A. Yes, curricula are organized by level, so learners from beginners to advanced can study at their own pace. The AI analyzes pronunciation and provides feedback, making it easy to learn from the basics.

Q. How does it differ from online English conversation?

A. Speak uses AI, so you can practice anytime without reservations, achieving over 1,000 words in 20 minutes — approximately 10 times the speaking volume of traditional services. You can practice repeatedly without the embarrassment of making mistakes in front of others.

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